Finding the Fourth Proportional to 189,235,613.80, 283,770,476.70 and 86,965,661.80
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Solution
The fourth proportional to 189,235,613.80, 283,770,476.70 and 86,965,661.80 is: 130,410,374.72
Step by Step Solution
- Step 1: Write the proportion equation
189,235,613.80 : 283,770,476.70 = 86,965,661.80 : x - Step 2: Convert to fraction form
189,235,613.80/283,770,476.70 = 86,965,661.80/x - Step 3: Cross multiply
189,235,613.80x = 283,770,476.70 × 86,965,661.80 - Step 4: Simplify right side
189,235,613.80x = 24,678,287,305,516,980 - Step 5: Solve for x
x = 24,678,287,305,516,980/189,235,613.80 - Step 6: Final answer
x = 130,410,374.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.